Answer to Question #155611 in Optics for Huzaifa Rehman

Question

Draw the level scheme (schematic) of the He-Ne laser system. Demonstrate it, why we use He in He-Ne laser system?

Where L stand for laser, He stand for Helium and Ne stand for Neon.

Answer 1

The use of helium atoms in the laser system is to excite neon atoms. the atomic transitions in the neon produces the laser light.